Fatty acid concentrations in timothy (<i>Phleum pratense</i>L.) and meadow fescue (<i>Festuca pratensis</i>Huds.): Effects of seasonal variations at different nitrogen fertilization levels

Arvidsson, Katarina; Martinsson, Κjell; Gustavsson, Anne‐Maj

doi:10.1080/09064710.2013.766256

Cited by 2 publications

(3 citation statements)

References 16 publications

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“…We observed that meadow fescue was positively correlated with oleic acid. This finding is in accordance with what was reported by Arvidsson et al (2013); fescue contained higher concentrations of oleic acid compared to timothy. Timothy was positively correlated with LA, the n-6:n-3 ratio, and palmitic acid.…”

Section: Relationship Between Plant Species Antioxidants and Fatty Acidssupporting

confidence: 93%

“…Timothy was positively correlated with LA, the n-6:n-3 ratio, and palmitic acid. Timothy was found to have higher LA content and lower ALA content compared to fescue (Dewhurst et al, 2001;Arvidsson et al, 2013), but the positive correlation between timothy and palmitic acid is surprising. The positive correlation between alfalfa and phenolics was also unexpected.…”

Section: Relationship Between Plant Species Antioxidants and Fatty Acidsmentioning

confidence: 81%

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Evaluation of fatty acid and antioxidant variation in a complex pasture system as compared to standard cattle feed in the Great Lakes region

Krusinski

Maciel

Sergin

et al. 2022

Front. Sustain. Food Syst.

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As the demand for grass-fed ruminant products keeps increasing, more data are needed to assess the nutritional value of feedstuffs, especially pastures. In addition, global climate change adds another challenge to the management of grasslands with projections of changing temperature and precipitation patterns. Consequently, the variations in bioactive compounds such as fatty acids and antioxidants in feeds will be harder to predict. Therefore, it is critical to report region and time-specific results of the nutritional value of feeds intended for ruminant nutrition. The objectives of this study were to compare the antioxidant and fatty acid content of commonly used feedstuffs including a complex pasture mixture from the Great Lakes Region and a traditional grain-based diet, and to assess the variations of these bioactive compounds in the pasture over the course of two grazing seasons. Weather parameters including temperature and rainfall were recorded for the length of the study. Feed samples were collected between June and September 2019 and 2020 and analyzed for nutrient composition, chlorophyll A and B, carotenoids, and total phenols. Fatty acids were analyzed by GC-MS. Correlations were reported to analyze the relationship between individual plant species, antioxidants, and fatty acids. We observed higher antioxidant parameters in the pasture compared to the grain diet. Total polyunsaturated fatty acids were higher in the pasture including α-linolenic acid while the grain diet was higher in n-6 polyunsaturated fatty acids including linoleic acid. The n-6:n-3 ratio was more beneficial in the pasture and was 50–90 times higher in the grain diet. Variations in the fatty acid profile of the pasture were observed and varied between 2019 and 2020. Plant growth cycles, climatic conditions, and grazing methods were hypothesized to cause these changes. Altogether, this study increased our knowledge about the nutritional value of feedstuffs and will help ranchers and researchers to better understand the variations of bioactive content based on region, season, and climatic conditions.

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Section: Relationship Between Plant Species Antioxidants and Fatty Acidssupporting

confidence: 93%

Section: Relationship Between Plant Species Antioxidants and Fatty Acidsmentioning

confidence: 81%

Evaluation of fatty acid and antioxidant variation in a complex pasture system as compared to standard cattle feed in the Great Lakes region

Krusinski

Maciel

Sergin

et al. 2022

Front. Sustain. Food Syst.

View full text Add to dashboard Cite

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“…Interestingly, in Nieznanice, in spite of the lowest values of most of the analysed traits, in the samples taken the crude protein content was found to be the highest. Such a relationship, indicating a high level of amino acids as protein precursors, most probably was connected with a high level of soil available nitrogen, which had been suggested by other researchers in their earlier studies on timothy (Arvidsson et al, 2013;Pomerleau-Lacasse et al, 2019;Termonen et al, 2020). Besides the AE interaction, the most important information obtained due to experiments at many locations, the AMMI biplot, also gives a chance for visualization of the accession main effect in different environments (Bocianowski et al, 2018).…”

Section: Total Accession Selection Indexmentioning

confidence: 65%

The impact of genotype‐by‐environment interaction on the dry matter yield and chemical composition in timothy (Phleum pratense L.) examined by using the additive main effects and multiplicative interaction model

Bocianowski

Radkowski

Nowosad

et al. 2021

Grass and Forage Science

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Timothy (Phleum pratense L.) is one of the most important pasture grasses commonly grown in temperate climate zones, including Europe, North America and Asia. Because of its adaptation to a cold and relatively wet northern climate, timothy is the most important pasture grass in the northern regions of the Nordic Countries (Jing et al., 2013). This species, as a hemicryptophyte, is well adapted to winter conditions, and as fodder it shows good nutritional value (Tanaka et al., 2011). In Poland, the National Register currently lists 16 timothy cultivars, including one lawn cultivar (LOR, 2020), while in the EU Catalogue there are 128 cultivars, and they are progressively replaced with newly registered cultivars (CCA, 2020). Many usable traits, such as dry matter yield and chemical composition, not only in grasses, are complex quantitative traits, and their expression is influenced by genotype (in the case of outcrossing grass species, the term accession instead of genotype was used in this study), environment and accession-by-environment (AE)

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Fatty acid concentrations in timothy (Phleum pratenseL.) and meadow fescue (Festuca pratensisHuds.): Effects of seasonal variations at different nitrogen fertilization levels

Cited by 2 publications

References 16 publications

Evaluation of fatty acid and antioxidant variation in a complex pasture system as compared to standard cattle feed in the Great Lakes region

Evaluation of fatty acid and antioxidant variation in a complex pasture system as compared to standard cattle feed in the Great Lakes region

The impact of genotype‐by‐environment interaction on the dry matter yield and chemical composition in timothy (Phleum pratense L.) examined by using the additive main effects and multiplicative interaction model

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